Evidence map›Paper›PMID 26514606›Full record

ArticleAJNR. American journal of neuroradiology2016

Prominence of Medullary Veins on Susceptibility-Weighted Images Provides Prognostic Information in Patients with Subacute Stroke.

X Yu, L Yuan, A Jackson, J Sun, P Huang, X Xu, Y Mao, M Lou, Q Jiang, M Zhang

Open access · bronzeAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Elevated brain oxygen extraction fraction measured by MRI susceptibility relates to perfusion status in acute ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Trial
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  10. Integrative cerebral blood flow regulation in ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2022
    Review
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  17. Decreased visible deep medullary veins is a novel imaging marker for cerebral small vessel disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2020
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 5 institutions in 5 countries.

X YuFrom the Departments of Radiology (X.Y., J.S., P.H., X.X., M.Z.).ORCID http://orcid.org/0000-0001-6024-8591
L YuanDepartment of Biomedical Engineering and Instrument Science (L.Y.), Key Laboratory for Biomedical Engineering of Education Ministry of China, Zhejiang University, Hangzhou, China.ORCID http://orcid.org/0000-0002-8650-9451
A JacksonWolfson Molecular Imaging Centre (A.J.), University of Manchester, Manchester, United Kingdom.ORCID http://orcid.org/0000-0002-1623-0383
J SunFrom the Departments of Radiology (X.Y., J.S., P.H., X.X., M.Z.).ORCID http://orcid.org/0000-0002-8682-3504
P HuangFrom the Departments of Radiology (X.Y., J.S., P.H., X.X., M.Z.).ORCID http://orcid.org/0000-0003-4226-9369
X XuFrom the Departments of Radiology (X.Y., J.S., P.H., X.X., M.Z.).ORCID http://orcid.org/0000-0001-6811-9997
Y MaoNeurology (Y.M., M.L.), Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.ORCID http://orcid.org/0000-0001-7547-9253
M LouNeurology (Y.M., M.L.), Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.ORCID http://orcid.org/0000-0002-6627-064X
Q JiangDepartment of Neurology (Q.J.), Henry Ford Health System, Detroit, Michigan.ORCID http://orcid.org/0000-0001-7908-4443
M ZhangFrom the Departments of Radiology (X.Y., J.S., P.H., X.X., M.Z.) zhangminming@zju.edu.cn.ORCID http://orcid.org/0000-0003-0145-7558
X-Fab (Germany) · DESecond Affiliated Hospital of Zhejiang University · CNHenry Ford Health System · USMinistry of Education · NZUniversity of Manchester · GB

Funding

Imaging Cell Based Treatment of Traumatic Brain InjuryR01NS064134 · NINDS · HENRY FORD HEALTH SYSTEM · PI JIANG, QUAN · 2011 to 2014
$1.3M
Cancer Research UK 18097NINDS NIH HHS R01 NS064134
6 · The paper itself

Abstract

background and purposeThe demonstration of prominent medullary veins in the deep white matter ipsilateral to acute ischemic stroke has been shown to predict poor clinical outcome. We have investigated the prognostic implications of prominent medullary veins in patients with subacute stroke who present outside the therapeutic window for revascularization therapy. MATERIALS AND

methodsForty-three consecutive patients with ischemic stroke in the middle cerebral artery territory presenting within 3-7 days of ictus were enrolled. The presence of prominent medullary veins in the periventricular white matter of the ipsilateral and contralateral medullary vein hemispheres was recorded. Perfusion-weighted imaging was used to calculate differences in hemispheric CBF from corresponding areas. Clinical outcome was classified as good if the modified Rankin Scale score was <3.

resultsProminent medullary veins were observed in 24/43 patients with 14 ipsilateral medullary veins and 10 contralateral medullary veins. The ipsilateral medullary vein was independently associated with poor outcome (odds ratio, 11.19; P = .046). The contralateral medullary vein was not independently predictive of outcome but was significantly more common in patients with good outcome (90.0% contralateral medullary veins). A mean 64.5% decrease and a 52.4% increase of differences in hemispheric CBF were found in ipsilateral medullary veins and contralateral medullary veins, respectively.

conclusionsThe ipsilateral medullary vein was a significant predictive biomarker of poor clinical outcome after stroke and was associated with hypoperfusion. The contralateral medullary vein was associated with good clinical outcome, and we hypothesize that prominent contralateral medullary veins indirectly reflect increased CBF in the ipsilateral hemisphere due to spontaneous recanalization or collateral flow.

Indexed as

AgedAged, 80 and overBrainFemaleHumansMaleMiddle AgedPerfusion ImagingPrognosisStrokeVeins

Identifiers

PMID26514606
PMCPMC7960117
OpenAlexW2180873525

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.